Properties of the Number 28929

Twenty-Eight Thousand Nine Hundred Twenty-Nine

Basics

Value: 28928 → 28929 → 28930

Parity: odd

Prime: No

Previous Prime: 28927

Next Prime: 28933

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 9643

Divisors: 1, 3, 9643, 28929

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111000100000001

Octal: 70401

Duodecimal: 148A9

Hexadecimal: 7101

Square: 836887041

Square Root: 170.08527273106276

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k such that binomial(5k, k) - 1 is prime. A125242

Expansion of ∑_k>=1 x^k * (1 + k·x^k)^k. A327249

Numbers which do not reach zero under either of the iterations: x -> floor(sqrt(x)) * (x - floor(sqrt(x))²) or y -> ceiling(sqrt(y)) * (ceiling(sqrt(y))² - y). A219963

Expansion of ∏_k>=1 1/(1 - k·x^k)^σ(k), where σ = A000203. A318483

∑_i=1..n ∑_j=1..n (i OR j), where OR is the binary logical OR operator. A258438

Pierce Expansion of tan(1). A280092

Expansion of ∏_k>=0 1 / (1 - x^{3^k})³. A374627

Numbers represented by quadratic form with Gram matrix [ 4, 1; 1, 6 ], divided by 2. A28929